Passwords are important to keep track of. Especially important is the one for locked notes. If you can't remember the locked notes password you created, you can keep guessing, but until you enter the correct password you created the notes will remain locked. You were given an opportunity when you created the password to create a password hint. Did you? Did you write the password down somewhere safe for future recall? This will unfortunately be a valuable lesson. Keep track of important passwords.
As to whether there will be an update in the future to avoid this, no one here can answer. This is a user to user only forum, which no one from Apple participates. And even if Apple did participate, which they don't, they would be prohibited from discussing any future updates they may be working on. Since it's been years since notes could be locked by a password and years with no workaround, my guess is this is not something Apple is working on.
But you can let Apple know your thoughts by providing feedback here --> Feedback - iPhone - Apple